Invertebrates - Arthropoda

Question 1

what are the general traits of artropods?

Answer 1

-coelomate, protostomes
-segmented skeletons with jointed appendages
-open circulatory system and well developed sensory systems

Question 2

what are the pros and cons of arthropod exoskeletons?

Answer 2

-provides good protection and defense, as well as attachment for muscles
-but limits size of organism and makes it more difficult to regulate body temp

Question 3

what are the traits of the subphylum chelicerata? what animals are found here?

Answer 3

-scorpions, spiders, mites, ticks, horseshoe crabs
-4 pairs of walking legs, book lungs
-have chelicerae for feeding and pedipalps for sensing or feeding

Question 4

what are the traits of the subphylum myriapoda? what animals are found here?

Answer 4

-millipedes, centipedes
-1 pair of antennae, 3 pairs of appendages
-millipedes have 2 pairs of walking legs per segment, centipedes have 1 pair

Question 5

what are the traits of the subphylum hexapoda? what animals are found here?

Answer 5

lice, beetles, flies, termites, butter/dragonflies
-divided into head, thorax, abdomen
-1-2 pairs of wings, 3 pairs of legs
-have malpighian tubes for excretion

Question 6

what are the traits of the subphylum crustacea? what animals are found here?

Answer 6

-crabs, lobsters, crayfish, shrimp, and crustaceans
-branched appendages, appendages on abdomen, thorax, head
-have mouthparts for chewing